What is Munched On That Beaver?
1.
when a guy (or girl) eats out (performs oral sex on) a female.
eddie munched on that beaver of stacy's on saturday.
See
2.
A guy usually who goes home with an ugly girl or takes and ugly girl home and has sex. He did this because he was so drunk.
Kyle: Yo, I munched on that beaver last night!
Wyatt: You must have been hella drunk!
Kyle: For real!
See